Description
Zurn Wilkins 12-975XLST 1/2″ Stainless Steel RPZ Backflow Preventer
Product Overview
The Zurn Wilkins 12-975XLST Reduced Pressure Principle Backflow Preventer is engineered to provide maximum protection against backpressure and backsiphonage in high-hazard potable water applications. Constructed from durable stainless steel, this RPZ backflow assembly offers superior corrosion resistance and reliable performance in demanding environments.
The wye-pattern body design allows independent access to each check valve and the relief valve, simplifying testing and maintenance. With full compliance to lead-free standards and major industry approvals, the 975XLST backflow preventer is a trusted choice for protecting water systems where a significant health risk exists.
Features & Benefits
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All stainless steel body for maximum durability and corrosion resistance
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Ideal for water systems with liquids corrosive to copper alloys
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Low-lead law compliant for potable water applications
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Separate access points for easy servicing of check valves and relief valve
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Tested and approved to meet rigorous safety and plumbing standards
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Compact and reliable design for medical, food service, and industrial systems
Applications
The Zurn Wilkins 12-975XLST is designed for installation on potable water lines where contamination poses a health hazard. Common applications include:
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Medical diagnostic and laboratory equipment
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Food and beverage processing facilities
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Breweries and distilleries
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Systems handling liquids incompatible with copper alloys
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Any installation requiring lead-free RPZ backflow preventers
Specifications
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Model: 12-975XLST
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Size: 1/2 inch (also available in 3/8 inch)
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Body Material: Stainless Steel
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Pressure Rating: 175 PSI maximum working pressure
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Temperature Rating: Up to 180°F (82°C)
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Connections: FNPT threaded, ANSI B1.20.1
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Standards Compliance:
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ASSE® Listed 1013
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NSF/ANSI 61 Certified
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USC FCCC&HR Approved
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Lead-free certified (NSF/ANSI 372)
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Installation Tips
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Install in accordance with local plumbing and backflow prevention codes.
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Ensure unit is accessible for testing, maintenance, and inspection.
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Maintain proper clearances around the assembly for servicing.
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Install in a horizontal orientation unless otherwise specified by local regulations.
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Provide adequate drainage for relief valve discharge.
FAQs
Q: What is an RPZ backflow preventer?
An RPZ (Reduced Pressure Zone) preventer provides the highest level of protection by using two check valves and a relief valve to prevent contaminated water from entering potable systems.
Q: Where should this model be used?
It is best suited for commercial and industrial potable water lines where contamination would create a health hazard.
Q: Is this model lead-free?
Yes, it meets NSF/ANSI 372 standards with a maximum weighted average lead content of 0.25%.
Q: What makes this version different from the 975XL?
The 975XLST features an all-stainless steel body, making it ideal for corrosive environments where copper alloy valves are not suitable.
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